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Real-time Performance of the SED-ETHZ SeisComP Earthquake Early Warning (ESE) System at CWA During the 3 April 2024 Magnitude 7.4 Earthquake Sequence Near Hualien City, Taiwan.

Since mid-2023, the Central Weather Administration Seismographic Network (CWASN) and Taiwan Strong Motion Instrumentation Program network (TSMIP) have been testing the ESE Earthquake Early Warning (EEW) system nationwide across Taiwan. ESE provides access to the (point source) Virtual Seismologist and (extended source) FinDer EEW algorithms through the popular SeisComP seismic data processing software platform. ESE is currently used in the operational EEW systems across Central America, and in test systems in other countries, including Switzerland, New Zealand, and Italy.
The CWASN and TSMIP also operate the public national EEW system for Taiwan. During the recent M7.4 3 April 2024 earthquake near Hualien city, this system successfully distributed alerts nationwide via channels including the Public Warning System (PWS), television broadcasts, and the internet. The ESE system was also running in real-time during the event for internal testing. In this contribution, we compare the performance of the public system with ESE, which was accessing the same network data. In particular, we focus on FinDer’s ability to provide rapid information on the source extent, which would have important consequences on estimating ground motions across Taiwan, improving the performance of an EEW system.

Session: The 3 April 2024 Magnitude 7.4 and 6.4 Earthquakes and Aftershock Sequence Near Hualien City, Eastern Taiwan [Poster Session]

Type: Poster

Room: Exhibit Hall

Date: 5/3/2024

Presentation Time: 08:00 AM (local time)

Presenting Author: Frederick Massin

Student Presenter: No

Additional Authors